Search found 9 matches

by yudeng
Sat Apr 23, 2022 2:04 pm
Forum: VTSTTools
Topic: Can we do nonlinear interpolation?
Replies: 7
Views: 15258

Can we do nonlinear interpolation?

Dear Prof. Henkelman,

I have a question. When we perform NEB interpolation, in addition to giving the initial and final states, can we give a predetermined NEB path by giving some intermediate images, and then perform average interpolation based on this? And is there a relevant script?

Thank you ...
by yudeng
Thu Aug 26, 2021 8:07 am
Forum: VTSTTools
Topic: Solution of rate equation
Replies: 6
Views: 18259

Re: Solution of rate equation

Hi Jagannath,

Thank you for your reply very much.
I can numerically solve differential equations with some codes, but I can't get the same results as in the reference J. Phys. Chem. C 2014, 118, 6706−6718. I'm not sure whether it's my fault or there's a mistake in this reference.

yours
Yu
by yudeng
Tue Aug 24, 2021 12:57 pm
Forum: VTSTTools
Topic: Solution of rate equation
Replies: 6
Views: 18259

Re: Solution of rate equation

Dear Prof. Henkelman,

I am sorry to bother you again.
Could you give me any references on solving rate equations for me to learn?
I have been confused about this problem for a long time.
Although I can solve rate equations at present, I can't get the same results as the corresponding reference ...
by yudeng
Thu Jun 24, 2021 4:01 am
Forum: VTSTTools
Topic: Solution of rate equation
Replies: 6
Views: 18259

Re: Solution of rate equation

Ok, thank you Professor! I'll discuss it with my advisor again.
by yudeng
Thu Jun 24, 2021 2:26 am
Forum: VTSTTools
Topic: Solution of rate equation
Replies: 6
Views: 18259

Solution of rate equation

Dear Prof. Henkelman,

After I get the reaction barrier and the corresponding rate constant through cineb, how can I solve the first order reaction rate equation ( as shown in the attachment)? Can it be solved by the Sympy.solve module implemented in Python?

Unfortunately, when I use Python to ...
by yudeng
Mon Jun 21, 2021 1:11 am
Forum: VTSTTools
Topic: CINEB Diverges in specific images
Replies: 5
Views: 16607

Re: CINEB Diverges in specific images

Many thanks for your time on this!

Good luck!
by yudeng
Sun Jun 20, 2021 7:38 am
Forum: VTSTTools
Topic: CINEB Diverges in specific images
Replies: 5
Views: 16607

Re: CINEB Diverges in specific images

graeme wrote:
> Look at my standard go-to calculation using IOP=3 TIMESTEP=0.1 with 8
> images. It seems to be converging, although with an intermediate minimum.

Thank you Professor!
I examined your calculations and I have three questions.
1. dist.pl shows that the distance between the initial and ...
by yudeng
Sun Jun 20, 2021 1:51 am
Forum: VTSTTools
Topic: CINEB Diverges in specific images
Replies: 5
Views: 16607

Re: CINEB Diverges in specific images

I also tested tags with IOPT = 1, 3, 7 and different SPRING, but the results still did not converge.
by yudeng
Sat Jun 19, 2021 3:42 pm
Forum: VTSTTools
Topic: CINEB Diverges in specific images
Replies: 5
Views: 16607

CINEB Diverges in specific images

Hello Prof. Graeme,

I am trying to use CINEB for calculation of the energy barrier for O2 decomposation on La-doped-MoS2 slab.
I first use NEB for preconvergence with IOPT=2, Attached NEB files.
However, during NEB calculation, oxygen will rotate strangely on the slab and produce a large force.
How ...